虽然测试工程师不能估算总的项目成本，但是他们的确可以评估对成本的测试贡献，并且提出测试风险和可行性。

While test engineers cannot estimate total project cost, they can certainly estimate testing contribution to cost, and suggest test risks and feasibility.

youdao

当PM接到的估算允许20%、50%，或甚至100%的错误差数时，他们会对架构师感到失望。

PMs get disappointed with their architects when they receive estimates that allow 20%, 50%, or even 100% margins for error.

youdao

这令 PM 希望架构师在项目开始之前所进行的估算可以成为现实。

This leaves the PM to hope that an estimate produced by the architect before the project started will come true.

youdao